Unable to join curves



Hi everyone,

I want to join curves with each other, but it doesn´t work. I also used Selclosedcurves and realized that a lot of curves aren´t joined.

Does anyone know what the problem is?

Thanks in advance for your answer :slight_smile:
Lageplan.3dm (3.6 MB)

please make some tutorials on the basics of rhino, joining curves whose ends dont meet does not work, you are trying to join curves into the middle of other curves, naturally these in the middle will not adhere to the rest. you can group them if you want to handle them for other things but joining only works if two ends meet each other, meaning 3 curves meeting with their ends do also not join just in case.

here for example you can join the purple with the blue

this on the other side does not work